KR20160053120A

KR20160053120A - Resin composite sheet for packaging

Info

Publication number: KR20160053120A
Application number: KR1020140149676A
Authority: KR
Inventors: 방경찬; 이창용
Original assignee: 그린포장 주식회사
Priority date: 2014-10-30
Filing date: 2014-10-30
Publication date: 2016-05-13

Abstract

More particularly, the present invention relates to a carton for packaging, and more particularly, to a carton for packaging, which is produced by compounding, extruding and extruding fibers, a filler, a foaming agent, a heat stabilizer and a coupling agent into a synthetic resin, The present invention is intended to provide a composite cardboard for packaging.
That is, the present invention relates to a carton for packaging, which is produced by extrusion-extruding fibers, a filler, a foaming agent, a heat stabilizer and a coupling agent into a synthetic resin.
Accordingly, the present invention provides a packaging paperboard which is excellent in moisture resistance and light weight and can be recycled by forming a packaging paperboard by compounding, extruding and extruding fibers, a filler, a foaming agent, a heat stabilizer and a coupling agent into a synthetic resin.

Description

{Resin composite sheet for packaging}

More particularly, the present invention relates to a carton for packaging, and more particularly, to a carton for packaging, which is produced by compounding, extruding and extruding fibers, a filler, a foaming agent, a heat stabilizer and a coupling agent into a synthetic resin, The present invention is intended to provide a composite cardboard for packaging.

In general, packaging paperboard is produced using pulp processed using wood.

Particularly, wrapping paper used in boxes and the like is processed and produced by using recycled pulp.

The cardboard packaging paperboard as described above has a weak strength and corrugated cardboard having corrugated cardboard inserted between two cardboard sheets has been developed and used.

The above corrugated cardboard is widely used as packing material because of its excellent durability and buffering ability.

However, when the corrugated cardboard for box packaging is weak in moisture resistance and moisture is introduced therein, the inner corrugated sheet does not maintain its supporting rigidity, so that the durability is rapidly lowered, the box type is not maintained, Which can not be protected from impact.

Korean Patent No. 0811418

Accordingly, the corrugated cardboard box for packaging according to the present invention can not maintain the rigidity of the inner corrugated plate due to its low moisture resistance and moisture, and the durability of the corrugated cardboard can not be maintained. So that the problem of not being able to be protected from impact can be solved.

That is, the present invention relates to a carton for packaging, which is produced by extrusion-extruding fibers, a filler, a foaming agent, a heat stabilizer and a coupling agent into a synthetic resin.

Accordingly, the present invention provides a packaging paperboard which is excellent in moisture resistance and light weight and can be recycled by forming a packaging paperboard by compounding, extruding and extruding fibers, a filler, a foaming agent, a heat stabilizer and a coupling agent into a synthetic resin.

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a view showing an example of corrugated board made of a packaging paperboard according to the present invention, wherein the corrugated board is composed of a composite synthetic resin paperboard.
2 is a view showing an example of a corrugated cardboard made of a packaging paperboard according to the present invention, wherein the envelope is composed of a composite synthetic resin paperboard.
FIG. 3 is an exemplary view showing a corrugated board in a multilayer structure according to an embodiment of the present invention. FIG.
4 is an illustration of an insulating board made of a packaging paperboard according to the present invention.

Hereinafter, the present invention will be described in detail with reference to the accompanying drawings.

The present invention provides a packaging paperboard that improves the moisture resistance of the packaging paperboard and is recyclable.

The packaging paperboard is prepared by mixing 45 to 90% by weight of a synthetic resin, 5 to 25% by weight of fibers, 3 to 20% by weight of a filler, 1 to 4% by weight of a foaming agent and 0.5% by weight of a coupling agent of 0.5% by weight of a heat stabilizer.

The synthetic resin may be composed of polyethylene. Preferably, the synthetic resin is composed of low density polyethylene (LDPE).

If the content of the fibers is less than 5% by weight, soft and soft texture such as paper will be reduced. If the fiber content is more than 25% by weight, the durability of the paperboard will be weakened, , And 20 wt% of fibers.

In addition, the fibers may be formed of any one of pulp or recycled pulp, woist pulp, natural pulp, and pulp woven fiber.

The fibers may be formed by forming the particles of 50 to 100 microns in size.

Preferably, the filler is composed of light calcium carbonate.

The foaming of the present invention by the foaming agent is extruded through a T-die in an extruder maintaining a temperature of about 160 ° C and foamed to 10-200 volume%.

The heat stabilizer helps to maintain the physical and chemical properties of the synthetic resin, thereby preventing the decomposition damage of the synthetic resin at high temperatures in the molding process.

The coupling agent serves to modify the synthetic resin and the fiber, which are low density polyethylene, and to connect the fibers to the chains of the low density polyethylene. The coupling agent serves to uniformly mix the fibers so that the fibers do not aggregate.

An embodiment of the synthetic resin composite corrugated cardboard to which the present invention is applied will be described below.

That is, the present invention relates to a method of manufacturing a corrugated cardboard in which a corrugated plate 20 of a single-layer corrugated cardboard and a corrugated plate 20 of the corrugated panel 10, on both sides of the corrugate plate 20 and the corrugate plate 20, , A heat stabilizer and a coupling agent, and the outer casing 10 is formed of paper.

The present invention also relates to a method of manufacturing a corrugated cardboard comprising a corrugated cardboard sheet and a corrugated cardboard sheet having a corrugated cardboard sheet and a corrugated cardboard sheet, And the corrugated sheet 20 can be formed of paper.

The corrugated cardboard 20 has corrugated plates 20 on both sides of the center plate 30 and a corrugated sheet 20 and corrugated sheets 20, 10) may be formed into a synthetic resin composite sheet in which fibers, filler, foaming agent, heat stabilizer, and coupling agent are blended and extruded into a synthetic resin.

In the composite corrugated cardboard of the present invention, since the corrugated cardboard 20 or the corrugated cardboard 10 is made of the synthetic resin composite sheet according to the present invention, the composite cardboard is excellent in moisture resistance, and the rigidity and impact resistance Is maintained and the goods are safely protected and transported in the course of the wet sea transportation.

In addition, a manufacturing example of a synthetic resin composite buffer sheet to which the present invention is applied will be described as follows.

That is, the high embossability sheet 40 is placed between the outer sheath 10 made of the two synthetic resin composite sheets prepared by extrusion molding of the synthetic resin according to the present invention by blending the fibers, the filler, the foaming agent, the heat stabilizer and the coupling agent, Thereby forming a composite damping paper sheet.

As described above, the synthetic resin composite buffer board manufactured by laminating the outer cover 10 made of the synthetic resin composite sheet on the upper and lower sides with the high-embossability sheet 40 therebetween is provided with the outer cover 10 composed of the synthetic resin composite sheet forming the upper and lower outer surfaces Moisture introduced from the outside has moisture resistance, so that there is no change in humidity when used in a place having a lot of moisture.

10: Sheath
20: Corrugated board
30: Central
40: Accumulation sheet

Claims

CLAIMS 1. A packaging paperboard comprising:
Characterized in that synthetic resin is compounded with fibers, filler, foaming agent, heat stabilizer and coupling agent, and is foam extruded.

The method of claim 1, further comprising:
Wherein the packaging paperboard is composed of 45 to 90% by weight of a synthetic resin, 5 to 25% by weight of fibers, 3 to 20% by weight of a filler, 1 to 4% by weight of a foaming agent and 0.5% Synthetic resin composite cardboard.

The method of claim 1, further comprising:
Wherein the fibers are composed of any one of pulp, recycled pulp, natural pulp and waste fabric fiber, and the fibers are formed in a size of 50 to 100 microns.

The method of claim 1, further comprising:
By volume and 10 to 200% by volume, respectively.

5. The method according to any one of claims 1 to 4,
The synthetic resin is composed of low density polyethylene (LDPE)
Wherein the filler is composed of light calcium carbonate.

A corrugated plate 20 of a single layer corrugated cardboard and a corrugated plate 20 of a corrugated sheet 10 in which the corrugated panel 20 and the corrugated panel 20 are joined are joined to a synthetic resin with fibers, A synthetic resin composite sheet produced by extrusion-extrusion molding of a luting agent, the envelope 10 is formed of paper,
The synthetic resin composite sheet is prepared by blending 45 to 90% by weight of a synthetic resin, 5 to 25% by weight of fibers, 3 to 20% by weight of a filler, 1 to 4% by weight of a foaming agent and 0.5%
Wherein the fibers are composed of any one of pulp, recycled pulp and waste pulp fibers, the fibers having a particle size of 50 to 100 microns,
By volume, and 10 to 200% by volume of the foamed synthetic resin cardboard.

The core 30 and the envelope 10 of the multilayer corrugated cardboard having the corrugated plates 20 on both sides of the central plate 30 and the corrugated sheets 20 are joined to the outside of the corrugated plates 20 are bonded to the synthetic resin A synthetic resin composite sheet in which fibers and a filler, a foaming agent, a heat stabilizer and a coupling agent are mixed and foam extruded,
The synthetic resin composite sheet is prepared by blending 45 to 90% by weight of a synthetic resin, 5 to 25% by weight of fibers, 3 to 20% by weight of a filler, 1 to 4% by weight of a foaming agent and 0.5%
Wherein the fibers are composed of any one of pulp, recycled pulp and waste pulp fibers, the fibers having a particle size of 50 to 100 microns,
By volume, and 10 to 200% by volume of the foamed synthetic resin cardboard.

A composite foil laminate sheet is formed by placing a high-foaming sheet 40 between a sheath 10 made of two sheets of synthetic resin composite sheets produced by extruding a fiber, a filler, a foaming agent, a heat stabilizer and a coupling agent,
The synthetic resin composite sheet is prepared by blending 45 to 90% by weight of a synthetic resin, 5 to 25% by weight of fibers, 3 to 20% by weight of a filler, 1 to 4% by weight of a foaming agent and 0.5%
Wherein the fibers are composed of any one of pulp, recycled pulp and waste pulp fibers, the fibers having a particle size of 50 to 100 microns,
By volume, and 10 to 200% by volume of the foamed synthetic resin foam.